Yeah, the beginning of the new year is a good trigger to reflect on this topic.
You know you skate too much when you are a male in his 60's and
(a) You read a forum thread on "Keeping warm in a skirt", and you think, "That's an intriguing thermal transfer problem."
(b) You read a forum thread on "Skating while being well endowed in the chest", and you think, "How does a substantially axially-asymmetric load distribution affect a forward scratch spin?"
(c) Some of your most supportive, comforting, and endearing friends are 7 - 14 yr old girls.